package com.li.reggie.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.li.reggie.common.R;
import com.li.reggie.dto.DishDto;
import com.li.reggie.entity.Category;
import com.li.reggie.entity.Dish;
import com.li.reggie.entity.DishFlavor;
import com.li.reggie.service.CategoryService;
import com.li.reggie.service.DishFlavorService;
import com.li.reggie.service.DishService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.web.bind.annotation.*;

import java.util.List;
import java.util.stream.Collectors;

/**
 * 菜品管理
 */
@Slf4j
@RestController
@RequestMapping("/dish")
public class DishController {
    @Autowired
    private DishService dishService;

    @Autowired
    private DishFlavorService dishFlavorService;

    @Autowired
    private CategoryService categoryService;

    /**
     * 新增菜品
     *
     * @param dishDto
     * @return
     */
    @PostMapping
    public R<String> saveDish(@RequestBody DishDto dishDto) {
        log.info(dishDto.toString());
        dishService.saveWithFlavor(dishDto);

        return R.success("保存菜品成功");
    }

    /**
     * 菜品信息分页查询
     *
     * @param page
     * @param pageSize
     * @param name
     * @return
     */
    @GetMapping("/page")
    public R<Page<DishDto>> dishPage(int page, int pageSize, String name) {
        // 构造分页构造器
        Page<Dish> pageInfo = new Page<>(page, pageSize);
        Page<DishDto> dishDtoPage = new Page<>();
        //构造条件构造器
        LambdaQueryWrapper<Dish> queryWrapper = new LambdaQueryWrapper();
        //添加过滤条件
        queryWrapper.like(name != null, Dish::getName, name);
        //添加排序条件
        queryWrapper.orderByAsc(Dish::getSort).orderByDesc(Dish::getUpdateTime);
        //执行查询
        dishService.page(pageInfo, queryWrapper);

        //对象拷贝
        BeanUtils.copyProperties(pageInfo, dishDtoPage, "records");

        List<Dish> records = pageInfo.getRecords();

        List<DishDto> list = records.stream().map((item) -> {
            DishDto dishDto = new DishDto();

            BeanUtils.copyProperties(item, dishDto);

            Long categoryId = item.getCategoryId();
            //根据id查询分类对象
            Category category = categoryService.getById(categoryId);

            if (category != null) {
                String categoryName = category.getName();
                dishDto.setCategoryName(categoryName);
            }

            return dishDto;
        }).collect(Collectors.toList());

        dishDtoPage.setRecords(list);
        return R.success(dishDtoPage);
    }

    /**
     * 根据id查询菜品信息和菜品口味信息
     *
     * @param id
     * @return
     */
    @GetMapping("/{id}")
    public R<DishDto> get(@PathVariable Long id) {

        DishDto dishDto = dishService.getByIdWithFlavor(id);

        return R.success(dishDto);
    }

    /**
     * 更新菜品
     *
     * @param dishDto
     * @return
     */
    @PutMapping
    public R<String> updateDish(@RequestBody DishDto dishDto) {
        log.info(dishDto.toString());

        dishService.updateWithFlavor(dishDto);

        return R.success("更新菜品成功");
    }

//    /**
//     * 根据条件查询对应的菜品数据
//     *
//     * @param dish
//     * @return
//     */
//    @GetMapping("/list")
//    public R<List<Dish>> dishList(Dish dish) {
//        // 构造查询条件
//        LambdaQueryWrapper<Dish> wrapper = new LambdaQueryWrapper<>();
//        wrapper.eq(dish.getCategoryId() != null, Dish::getCategoryId, dish.getCategoryId());
//        // 添加条件，查询启售状态
//        wrapper.eq(Dish::getStatus, 1);
//
//        //添加排序条件
//        wrapper.orderByAsc(Dish::getSort).orderByDesc(Dish::getUpdateTime);
//        // 查询结果
//        List<Dish> list = dishService.list(wrapper);
//
//        return R.success(list);
//    }

    /**
     * 根据条件查询对应的菜品数据
     *
     * @param dish
     * @return
     */
    @GetMapping("/list")
    public R<List<DishDto>> dishList(Dish dish) {
        // 构造查询条件
        LambdaQueryWrapper<Dish> wrapper = new LambdaQueryWrapper<>();
        wrapper.eq(dish.getCategoryId() != null, Dish::getCategoryId, dish.getCategoryId());
        // 添加条件，查询启售状态
        wrapper.eq(Dish::getStatus, 1);

        //添加排序条件
        wrapper.orderByAsc(Dish::getSort).orderByDesc(Dish::getUpdateTime);
        // 查询结果
        List<Dish> list = dishService.list(wrapper);
        List<DishDto> dishDtoList = list.stream().map((item) -> {
            DishDto dishDto = new DishDto();

            BeanUtils.copyProperties(item, dishDto);

            Long dishId = item.getId();
            LambdaQueryWrapper<DishFlavor> queryWrapper = new LambdaQueryWrapper<>();
            queryWrapper.eq(DishFlavor::getDishId, dishId);
            List<DishFlavor> dishFlavors = dishFlavorService.list(queryWrapper);

            dishDto.setFlavors(dishFlavors);

            return dishDto;
        }).collect(Collectors.toList());

        return R.success(dishDtoList);
    }

    /**
     * 批量删除
     *
     * @param ids
     * @return
     */
    @DeleteMapping
    public R<String> delete(@RequestParam List<Long> ids) {

        dishService.removeWithFlavor(ids);

        return R.success("删除成功");
    }

    @Transactional
    @PostMapping("/status/{status}")
    public R<String> status(@PathVariable Integer status, @RequestParam List<Long> ids) {
        Dish dish = new Dish();

        for (Long id : ids) {
            dish.setId(id);
            dish.setStatus(status);
            dishService.updateById(dish);
        }

        return R.success("更新成功");
    }


}
